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input.h (in_system_header_at): Add comment.

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2014-08-15  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	* input.h (in_system_header_at): Add comment.

From-SVN: r214028
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Manuel López-Ibáñez 2014-08-15 16:27:38 +00:00
parent 8add4868b5
commit 86d2cad906
2 changed files with 14 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2014-08-15 Manuel López-Ibáñez <manu@gcc.gnu.org>
* input.h (in_system_header_at): Add comment.
2014-08-15 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR fortran/44054

11
gcc/input.h
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@ -59,8 +59,17 @@ extern location_t input_location;
((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \
: NULL))
/* Return a positive value if LOCATION is the locus of a token that is
located in a system header, O otherwise. It returns 1 if LOCATION
is the locus of a token that is located in a system header, and 2
if LOCATION is the locus of a token located in a C system header
that therefore needs to be extern "C" protected in C++.
Note that this function returns 1 if LOCATION belongs to a token
that is part of a macro replacement-list defined in a system
header, but expanded in a non-system file. */
#define in_system_header_at(LOC) \
((linemap_location_in_system_header_p (line_table, LOC)))
(linemap_location_in_system_header_p (line_table, LOC))
void dump_line_table_statistics (void);